Home / 18,431.16-27,646.65-5,283.60

Finding the Fourth Proportional to 18,431.16, 27,646.65 and 5,283.60

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Solution

The fourth proportional to 18,431.16, 27,646.65 and 5,283.60 is: 7,925.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,431.16 : 27,646.65 = 5,283.60 : x
  2. Step 2: Convert to fraction form
    18,431.16/27,646.65 = 5,283.60/x
  3. Step 3: Cross multiply
    18,431.16x = 27,646.65 × 5,283.60
  4. Step 4: Simplify right side
    18,431.16x = 146,073,839.94
  5. Step 5: Solve for x
    x = 146,073,839.94/18,431.16
  6. Step 6: Final answer
    x = 7,925.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.